Risk of Collision ALL0-9ABCDEFGHIJKLMNOPQRSTUVWXYZThe possibility that a collision may occur, usually established by taking a compass bearing of an approaching vessel. Defined in Rule 7 – Risk of Collision of IRPCS. Related content: Identifying vessel typesChecking for collision riskWho gives way?IRPCS: International Regulations for Preventing Collisions at Sea« Back to Glossary Index